* Allow env_kwargs in make_vec_env when env ID string supplied
Resolves#188
* Update docs/misc/changelog.rst
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Add test for env kargs in make_vec_env
* remove unnecessary args in test_vec_env_kwargs function
* Fixes and reformat
* Doc fix
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>